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M. MOSLER 81; M. HEMLER.-

SAFE. No. 284347. Patented Aug. 28, 1883.

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V UNITED STATES PATENT OFFICE.

MOSES MOSLER AND MICHAEL HEMLER, OF CINCINNATI, OHIO, ASSIGNORS TO THE MOSLER SAFE AND LOCK COMPANY, OF SAME PLACE.

SAFE.

SPECIFICATION forming part of Letters Patent N0. 284,047, dated August 28, 1883.

Application filed December 27, 1882. (N model.)

To all whom it may concern.-

Be it known that we, MosEs MosLER and MIcHIEL HEMLER, citizens of the United States, residing at Cincinnati, Ohio, have invented certain new and useful Improvements in Safes and Similar Structures, of which the following is a specification.

This invention relates particularly to a new method of constructing fire-proof safes; and its Object is to make a stronger and better safe than any now made at a less cost of labor and material. These objects are attained by constructing the frame of the safe from quadricylindrical bars, the front and rear frames being cut out in a peculiar manner and bent into rectangular frames, with rounded edges and corners, and united by cross-pieces having the same shape in cross-section as the frames.

These cross-pieces at the same time secure and protect the sheet or covering which forms the top, sides, and part of the safe-bottom, thus making a safe with rounded edges and corners.

The invention will be first fully described in connection with the accompanying drawings, making part of this specification, and then particularly pointed out in the claims.

In the drawings, Figure 1 is aview of a part of our quadri-cylindrical bar, notched from one side inward, to allow the bar to bend to form a round-cornered frame upon the outside, the opening in the frame being rectangular. The reverse side of the frame-corner is shown in plan View upon a reduced scale in Fig. 2. Fig. 3 is an inside plan View, upona still smaller scale, of a portion of the quadricylindrical bar/from which the frame of the safe is constructed. Fig. 4 is a detail plan view of the inside of a safe-corner, showing the position of the re-enforce piece in dotted line in the corner. The piece itself is shown, in full plan view, detached. Fig. 5 is a vertical section taken in front of one of the corners, and centrally through the top and side of the safe after the sheet and cross-pieces are secured in place. Fig. 6 is asimilar sectional View taken in a plane at right angles to the View shown in Fig. 5, vertically from front to rear of the safe; and Fig. 7 is aperspective 50 View of a safe made according to our invention.

The same reference-letters indicate like parts wherever they occur throughout the various views.

The bar A, which is used to construct the frame-Work of the safe, is rolled from wrought metal. Its shape in cross-section is a quarter of a cylinder in the center, the curved portion being about one-half of the web from which the bar is rolled. From each end of the curve the web extends in straight lines at right angle to each other for about one-fourth the width of the web to the opposite edges.

The front and back frames of the safe are of the'same shape and size, and are formed as follows: A bar of the proper length to form a frame of the desired size is selected, and at the places where the bar is to be bent notches B of the shape shown (see Fig. 1) are cut in from one edge of the bar. The edges of the notch are at angles of forty-five degrees to the edge of the bar for a distance extending in from the edge to the curved portion. From there the lines continue to past the center of the bar in a cyma recta, the inner opposite curves meeting and forming a rounded end to the notch. Four notches like this being made A at the proper places for thefour corners of the frame, the bar is bent around a former the reverse of the inside of the corner until the edges upon opposite sides of the notch come at right angles. This closes the notch B, making a perfectly-tightmiterjoint. The bar may be bent into a frame while cold; but it is easier to bend and makes a better job if the bar is heated at the notches B, and in this case a female former the reverse of the outer curveof the corner may be used to compress the corner upon the male former, thus partially welding the edges of the notch. 0 The bent corners are re-enforced by malleable metal clips C, which are screwed or riveted in place. A sheet, E, of proper width, is bent to snugly fit underneath the horizontal web or flange of the frame, extending around the top I from bar A. These pieces are placed within the corners of the sheet and the frame of the safe secured together by rivets passing through the pieces D, sheet E, and the rounded corners of the front and rear frames. After this the cross-pieces F are placed'in position, the ends riveted to the sheet and piece D, and the edges riveted or screwed to the sheet E. The back plate of the safe is set and riveted in place either before or-after the two frames are united, the corners of the sheet fitting into the angular spaces in clips 0, thus completely covering the joint in the frames. The edges of sheet E underneath the safe have strips or bars which extend from the front to.the rear frame secured upon them, which project out beyond the edges to form a seat for the plate, which closes the bottom of the safe after it is filled with the fire-proof material.

The mode of attaching the door-casing and hinges is the same as in the safes now in common use.

It will be seen that the sheet E, which forms the top, sides, and bottom of the safe, is narrower for the same size of safe than it is in those safes in which the sheet is bent outside of angle-iron frames. In the latter case the sheet extends over the frames and to the rear and front of the safe. There is also less metal in the curved than in the angular bar.

It is evident thatthe mode of connecting the front and rear frames of the safe together and securing the sheet E within the flanges of the frames, instead of around the outside, can be applied to safes made of angle-bar frames having one web of the bar cut out and the other web bent around to form roundedged safes. It is also evident that instead of the short pieces D a single bar may be used extending from front to rear of the safe; and we do not limit ourselves to the exact shape of the notch B shown in the drawings, as it is clear the shape of this opening may be varied without departing from the principle of our invention, it being only necessary that a sufficient opening be cut from one edge inward toward the center to permit the bar to bend and insure the edges of the opening meeting in a good joint.

While our notched and bent bar is especially applicable to safe-work, it may also be used with advantage in other iron frame-work, such as bridges, jail-work, 850.

For a light safe, where great strength is not required,the pieces D and Fmaybe dispensed with and the frames held together by the sheet alone; but in this case the sheet should be of heavier metal than is commonly used in fireproof safes.

We claim as our invention and desire to secure by Letters Patent 1. A framebar for safes, consisting of a quadricylindrical iron bar, one of the webs of which is notched or cut away, as described, whereby the uncut web may be bent to cause the cut edges of the other web to meet, and thus form a rounded corner.

2. In-a safe, the combination, substantially as specified, of the front and rear frames with the sheet E, bent to the shape of the frames, and having its opposite edges secured within and overlapped by the inwardly-projeeting flanges of the frames.

3. The combination, in afire-proof safe, of the front and rear frames, the sheet E, bent to the shape of the frames, and having its opposite edges overlapped and secured to the illwardly projecting flanges or webs of the frames, with the pieces D and F, secured as shown.

4. A safe-frame constructed of quadri-cylindrical bars, having one web cut away at suitable points and the uncut web bent to cause the edges of the cuts of the other web to meet, thus forming rounded corners, substantially as described.

MOSES MOSLER.

' MICHAEL HEMLER.

Witnesses:

JNo. O. OLIVER, GEO. J. MURRAY. 

